CN108730174A - A kind of fine-tuning wellbore pump piston rod adaptive positioning device - Google Patents

A kind of fine-tuning wellbore pump piston rod adaptive positioning device Download PDF

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Publication number
CN108730174A
CN108730174A CN201810497146.XA CN201810497146A CN108730174A CN 108730174 A CN108730174 A CN 108730174A CN 201810497146 A CN201810497146 A CN 201810497146A CN 108730174 A CN108730174 A CN 108730174A
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CN
China
Prior art keywords
piston rod
locating piece
positioning
key
tuning
Prior art date
Application number
CN201810497146.XA
Other languages
Chinese (zh)
Other versions
CN108730174B (en
Inventor
李永飞
王定亚
曾兴昌
郝建旭
何根良
Original Assignee
宝鸡石油机械有限责任公司
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Filing date
Publication date
Application filed by 宝鸡石油机械有限责任公司 filed Critical 宝鸡石油机械有限责任公司
Priority to CN201810497146.XA priority Critical patent/CN108730174B/en
Publication of CN108730174A publication Critical patent/CN108730174A/en
Application granted granted Critical
Publication of CN108730174B publication Critical patent/CN108730174B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14Pistons, piston-rods or piston-rod connections
    • F04B53/144Adaptation of piston-rods
    • F04B53/147Mounting or detaching of piston rod

Abstract

A kind of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention, it is included in the cross locating piece being arranged between piston rod and intermediate draw bar, it is rotated respectively by axis pin at the end face center of cross locating piece and is provided with removable positioning key and stationary positioned key, intermediate draw bar and piston rod are respectively arranged with the first locating slot and the second locating slot close to the end face of cross locating piece, the other end of piston rod is provided with piston, stationary positioned key mapping is in the first locating slot, removable positioning key is located in the second locating slot, intermediate draw bar and piston rod are evenly arranged screw by periphery with cross locating piece and fix.The positioning device can adapt to wellbore pump piston bar and malalignment of the intermediate draw bar when being linked and packed automatically in a certain range, and then eliminate additional radial pressure, to slow down the eccentric wear degree of parts.

Description

A kind of fine-tuning wellbore pump piston rod adaptive positioning device

Technical field

The invention belongs to technical field of oil drilling equipment, and in particular to a kind of wellbore pump piston bar that can be finely tuned is adaptive Answer positioning device.

Background technology

Currently, drilling pump intermediate draw bar and crosshead and piston rod be by one end cylinder finger setting, due to parts plus The cumulative function of work and rigging error when piston rod is connect with intermediate draw bar, should measure on power end and rack front wallboard first Otherwise whether the concentricity in hole just needs to be adjusted bottom guide on power end within the scope of tolerance, be allowed to meet with The requirement of concentricity between intermediate draw bar.Even so, the positioning pin of piston rod end and intermediate draw bar end when connection installation Location hole will also tend to generate prodigious radial accumulation deviation, the two can only be linked together by force by clip at this time, Piston rubber is also forced to deform in this way, so also just easily cause in drilling well pump work crosshead and guide plate and piston with Serious eccentric wear between cylinder sleeve.This friction phenomenon will continue up between piston rod and intermediate draw bar the decrease of radial load or Thoroughly disappear, guide plate, piston or cylinder sleeve can serious eccentric wear, and then cause drilling pump that can not continue to work normally, substantially reduce The service life of parts in drilling pump, and also add the maintenance cost of drilling pump.

Invention content

The object of the present invention is to provide a kind of fine-tuning wellbore pump piston rod adaptive positioning devices, solve intermediate drawing Bar and piston rod eccentric wear problem caused by malalignment.

The technical solution adopted in the present invention is a kind of fine-tuning wellbore pump piston rod adaptive positioning device, including The cross locating piece being arranged between piston rod and intermediate draw bar is distinguished by axis pin at the upper and lower surface center of cross locating piece It is provided with removable positioning key and stationary positioned key, intermediate draw bar and piston rod are respectively arranged with close to the end face of cross locating piece The other end of a positioning groove and the second locating slot, piston rod is provided with piston, and stationary positioned key mapping is removable in the first locating slot Positioning key is located in the second locating slot, and intermediate draw bar and piston rod are fixed with cross locating piece by screw.

The features of the present invention also characterized in that

Stationary positioned bond energy slides in the first locating slot.

Removable positioning bond energy slides in the second locating slot.

The cross section of cross locating piece is circle.

Screw is circumferentially uniformly arranged along intermediate draw bar close to the end face of cross locating piece, and screw can also be along piston rod close to ten The end face of word locating piece is circumferentially uniformly arranged.

The invention has the advantages that the positioning device can adapt to wellbore pump piston bar in automatically in a certain range Between malalignment of the pull rod when being linked and packed, and then eliminate additional radial pressure, to slow down the eccentric wear degree of parts.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention;

Fig. 2 is that the structure of cross locating piece in a kind of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention is shown It is intended to;

Fig. 3 is removable fixed in a kind of cross locating piece of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention The structural schematic diagram of position key;

Fig. 4 is a kind of structural representation of the intermediate draw bar of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention Figure;

Fig. 5 is the structural representation of piston rod in a kind of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention Figure.

In figure, 1. intermediate draw bars, 2. cross locating pieces, 3. piston rods, 4. screws, 5. pistons, 6. removable positioning keys, 7. is solid Determine positioning key, 8. first locating slots, 9. second locating slots.

Specific implementation mode

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

A kind of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention, as shown in Figure 1, being included in piston rod 3 The cross locating piece 2 being arranged between intermediate draw bar 1 leads at the upper and lower surface center of cross locating piece 2 as shown in Figures 2 and 3 It crosses axis pin and rotates respectively and be provided with removable positioning key 6 and stationary positioned key 7, as shown in Figures 4 and 5, intermediate draw bar 1 and piston rod 3 are respectively arranged with the first locating slot 8 and the second locating slot 9, the other end setting of piston rod 3 close to the end face of cross locating piece 2 There are piston 5, stationary positioned key 7 to be located in the first locating slot 8, and stationary positioned key 7 can slide in the first locating slot 8, it is removable Positioning key 6 is located in the second locating slot 9, and removable positioning key 6 can slide in the second locating slot 9, intermediate draw bar 1 and piston rod 3 are circumferentially uniformly provided with multiple threaded holes respectively close to the end face of cross locating piece 2, and cross locating piece 2 is circumferentially uniformly opened Equipped with multiple through-holes, through-hole is equal with screw thread hole number and corresponds, and intermediate draw bar 1 and piston rod 3 lead to cross locating piece 2 The fixation of screw 4 is crossed, screw 4 is circumferentially uniformly arranged along intermediate draw bar 1 or piston rod 3 close to the end face of cross locating piece 2.

The cross section of cross locating piece 2 is circle.

A kind of fine-tuning wellbore pump piston rod adaptive positioning device of the present invention, assembly method are:First, by cross Locating piece 2 is assembled into component, and the stationary positioned key 7 on cross locating piece 2 is put into the first positioning of 1 end face of intermediate draw bar later In slot 8, the removable positioning key 6 on cross locating piece 2 is put into the second locating slot 9 of 3 end face of piston rod, finally draws centre Bar 1 and piston rod 3 are fixed with cross locating piece 2 by screw 4, that is, complete assembly.

Removable positioning key 6 can rotate around 2 axis pin of cross locating piece and carry out radial positioning, cross in the device of the invention The stationary positioned key 7 and removable positioning key 6 of 2 both ends of the surface of locating piece can respectively in the first locating slot 8 and the second locating slot 9 from By sliding, and relative to playing the role of positioning with the first locating slot 8 and 9 side vertical direction of the second locating slot, and cross locating piece 2 Piston rod 3 be can adapt to respect to the connection installation at any angle in a circumferential direction of intermediate draw bar 1, therefore can be eliminated because of centre Additional radial pressure caused by malalignment between pull rod 1 and piston rod 3 realizes uniform wear, fundamentally solves Eccentric wear problem.

Claims (5)

1. a kind of fine-tuning wellbore pump piston rod adaptive positioning device, which is characterized in that be included in piston rod (3) and centre The cross locating piece (2) being arranged between pull rod (1) is distinguished by axis pin at the upper and lower surface center of the cross locating piece (2) It is provided with removable positioning key (6) and stationary positioned key (7), the intermediate draw bar (1) and the piston rod (3) are close to the cross The end face of locating piece (2) is respectively arranged with the first locating slot (8) and the second locating slot (9), and the other end of the piston rod (3) is set It is equipped with piston (5), the stationary positioned key (7) is located in first locating slot (8), and the removable positioning key (6) is located at institute It states in the second locating slot (9), the intermediate draw bar (1) and the piston rod (3) pass through screw with the cross locating piece (2) (4) fixed.
2. a kind of fine-tuning wellbore pump piston rod adaptive positioning device according to claim 1, which is characterized in that institute Stating stationary positioned key (7) can the sliding in first locating slot (8).
3. a kind of fine-tuning wellbore pump piston rod adaptive positioning device according to claim 1, which is characterized in that institute Stating removable positioning key (6) can the sliding in second locating slot (9).
4. a kind of fine-tuning wellbore pump piston rod adaptive positioning device according to claim 1, which is characterized in that institute The cross section for stating cross locating piece (2) is circle.
5. a kind of fine-tuning wellbore pump piston rod adaptive positioning device according to claim 1, which is characterized in that institute Screw (4) is stated circumferentially to be uniformly arranged close to the end face of the cross locating piece (2) along the intermediate draw bar (1).
CN201810497146.XA 2018-05-15 2018-05-15 Fine-adjustable self-adaptive positioning device for piston rod of drilling pump CN108730174B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810497146.XA CN108730174B (en) 2018-05-15 2018-05-15 Fine-adjustable self-adaptive positioning device for piston rod of drilling pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810497146.XA CN108730174B (en) 2018-05-15 2018-05-15 Fine-adjustable self-adaptive positioning device for piston rod of drilling pump

Publications (2)

Publication Number Publication Date
CN108730174A true CN108730174A (en) 2018-11-02
CN108730174B CN108730174B (en) 2020-03-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810497146.XA CN108730174B (en) 2018-05-15 2018-05-15 Fine-adjustable self-adaptive positioning device for piston rod of drilling pump

Country Status (1)

Country Link
CN (1) CN108730174B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109443492A (en) * 2018-11-14 2019-03-08 浙江景昌建设有限公司 A kind of reservoir water level monitoring device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996417A (en) * 1998-03-23 1999-12-07 Team Corporation Preload piston actuator
CN201874804U (en) * 2010-11-25 2011-06-22 宝鸡石油机械有限责任公司 Mud pump piston rod device
CN201874803U (en) * 2010-11-23 2011-06-22 宝鸡石油机械有限责任公司 Device for connecting intermediate tie rod and piston rod of drill pump
CN202391717U (en) * 2011-11-24 2012-08-22 青岛天时石油机械有限公司 Self-aligning piston rod
CN104121185A (en) * 2014-08-06 2014-10-29 无锡压缩机股份有限公司 Piston rod and crosshead body connection adjusting structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5996417A (en) * 1998-03-23 1999-12-07 Team Corporation Preload piston actuator
CN201874803U (en) * 2010-11-23 2011-06-22 宝鸡石油机械有限责任公司 Device for connecting intermediate tie rod and piston rod of drill pump
CN201874804U (en) * 2010-11-25 2011-06-22 宝鸡石油机械有限责任公司 Mud pump piston rod device
CN202391717U (en) * 2011-11-24 2012-08-22 青岛天时石油机械有限公司 Self-aligning piston rod
CN104121185A (en) * 2014-08-06 2014-10-29 无锡压缩机股份有限公司 Piston rod and crosshead body connection adjusting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109443492A (en) * 2018-11-14 2019-03-08 浙江景昌建设有限公司 A kind of reservoir water level monitoring device

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